<script setup>
import { ref,onMounted,computed } from "vue"
import { useShowNum } from "@/composables/shownum.js"
let store = useShowNum()
let cart  = store.state.m_cart.cart
let options = ref([{
        text: '删除',
        style: {
          backgroundColor: '#C00000'
        }
}])


function swipeActionClickHandler(key){
    store.commit('removeGoodsById',key)
}

function radioChangeHandler(goods){
    uni.showLoading({title: 'Loading...',mask:true})
    let callback = ()=>{ uni.hideLoading() }
    goods.callback = callback
    store.commit('updateGoodsState',goods)
}

function numberChangeHandler(goods){
    uni.showLoading({title: 'Loading...',mask:true})
    let callback = ()=>{ uni.hideLoading() }
    goods.callback = callback
    store.commit('updateGoodsCount',goods)
}

</script>


<template>
      
      <view class="cart-container" v-if="cart.length != 0">
          <!-- 收货地址 --> 
          <my-address></my-address>
          <view class="cart-title">
             <uni-icons type="shop" size="18"></uni-icons>
             <text class="cart-title-text">购物车</text>
          </view>
          
          <!-- 商品列表区域 -->
          <uni-swipe-action>
            <block v-for="(goods, i) in cart" :key="i">
              <uni-swipe-action-item :right-options="options" @click="swipeActionClickHandler(i)">
                  <my-goods :goods="goods" :showRadio="true" :showNum="true" @radio-change="radioChangeHandler" @num-change="numberChangeHandler" class="goods-item"></my-goods>
              </uni-swipe-action-item>
            </block>
          </uni-swipe-action>
          
          <!-- 结算区域 -->
          <my-settle></my-settle>
      </view>
      
        <!-- 空白购物车区域 -->
        <view class="empty-cart" v-else>
          <image src="/static/cart_empty@2x.png" class="empty-img"></image>
          <text class="tip-text">空空如也~</text>
        </view>
      
</template>


<style lang="scss">
  .cart-container{
    padding-bottom:50px;
  }
  .cart-title {
    height: 40px;
    display: flex;
    align-items: center;
    font-size: 14px;
    padding-left: 5px;
    border-bottom: 1px solid #efefef;
    .cart-title-text {
      margin-left: 10px;
    }
  }
  
  .goods-item {
    // 让 goods-item 项占满整个屏幕的宽度
    width: 750rpx;
    // 设置盒模型为 border-box
    box-sizing: border-box;
    display: flex;
    padding: 10px 5px;
    border-bottom: 1px solid #f0f0f0;
  }
  
  .empty-cart {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding-top: 150px;
  
   .empty-img {
      width: 90px;
      height: 90px;
    }
  
    .tip-text {
      font-size: 12px;
      color: gray;
      margin-top: 15px;
    }
  }
</style>
